baber/WOPTO huggingface dataset:
Patent JP-S5725173-A (JP)
Title: Power converter circuit
Inventor: TOGAWA JIROU
IPC: H02M3/337
Filed: 1980-07-17
Abstract: PURPOSE:To reduce the thermal loss of a power converter by controlling to open or close a switching element when the current of a charging circuit and a discharging circuit becomes approximately zero at the charging or discharging time to convert the electric power. CONSTITUTION:When a control signal is applied to a switching element 2 to conduct the element, a charging current will flow to a capacitor 5 through the primary coil of a transformer 4. When the terminal voltage of the capacitor 5 is raised so  that the voltage value reaches approximately the voltage of the DC power source 1,  the charging current will not almost flow. Thereafter, the switching element 2 stopped. Since only the saturated voltage is generated at the switching element in the  conducted state, the loss is, even if large current flows, reduced, and since the current is nearly equal to zero in the stopping process, the switching loss is, even if the voltage is raised during the inclining time, not almost generated.
Patent JP-H11285262-A (JP)
Title: Self-excited resonance power supply
Inventor: OTAKE TETSUSHI
IPC: H02M7/537
Filed: 1998-03-27
Abstract: PROBLEM TO BE SOLVED: To provide a small, low-cost self-excited resonance power supply by adding the function of stabilizing output voltage to the power circuit itself of a self-excited resonance system. SOLUTION: In a self-excited resonance power supply of a push-pull configuration, a control device 3a supplies error signals in accordance with the difference between a voltage signal corresponding to an output voltage and a reference voltage to each gate of a first transistor Q1 and a second transistor Q2. These signals change the conducting timing of each transistor, thereby changing the self-excited oscillation frequency. Sine the change of the self-excited oscillation frequency varies the energy amount transmitted from a resonance circuit which comprises the primary winding N1 of a transformer T and a capacitor for resonant oscillation Cre to the secondary winding N2, control of the output voltage is made possible.
Patent JP-S58216304-A (JP)
Inventor: YAGIYUU HIDEKI
IPC: H01B3/44
Filed: 1982-06-08
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H04306511-A (JP)
Title: Power cable
Inventor: TAKAHASHI SUSUMU
IPC: H01B7/282
Filed: 1991-04-03
Abstract: PURPOSE:To enhance water-tree resistance in a cable such as a crosslinked- polyethylene-insulated power cable. CONSTITUTION:In a power cable having semiconducting layers 2 and 4, diffusion insulation layers 5a and 5b containing the base resin of the semiconducting layers 2 and 4 are formed to thickness of 50mum or more near the boundary surface of an insulation layer 3 in contact with the layers 2 and 4. The water- tree resistance of the power cable is improved by reforming the insulation layer 3 via the diffusion of the base resin.
Patent JP-S61256652-A (JP)
Title: Manufacture of semiconductor device
Inventor: ENDOU SEIJI
IPC: H01L21/3213
Filed: 1985-05-08
Abstract: PURPOSE:To smooth a wiring and eliminate the concern about discontinuity even if the wiring has a very fine structure by a method wherein, after a polycrystalline silicon film with a predetermined thickness is formed over the whole surface, the polycrystalline silicon filling a recessed part is etched by a predetermined thickness by anisotropic etching and the whole layers are subjected to thermal oxidization. CONSTITUTION:A polycrystalline silicon film 15 is deposited on the surface including a recessed part 14 to the thickness of approximately 4,000Angstrom  by a depressurized CVD method. If the polycrystalline silicon film 15 is etched by the thickness of approximately 4,000Angstrom  by anisotropic etching, as the film 15 is much thicker than 4,000Angstrom  on the sides of the recessed part 14, polycrystalline silicon films 16 of the side wall parts are left at the step parts. The semiconductor element is inserted into an oxidizing furnace and heated at about 900 deg.C to oxidize the polycrystalline silicon into silicon dioxide which gives the side wall parts of the recessed part the inclination of about 45 deg.. After the second wiring 17 is formed, PSG 18 is applied over the surface. As the side parts of the recessed parts of both the wiring and the protection film are free from a steep inclination, concern about discontinuity and cracking is eliminated.
Patent JP-S63284566-A (JP)
Inventor: RODERITSUHI RAUE
IPC: C09B69/06
Filed: 1988-04-22
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H09288899-A (JP)
Title: Semiconductor storage device
Inventor: TANZAWA TORU
IPC: G01R31/28
Filed: 1996-04-19
Abstract: PROBLEM TO BE SOLVED: To shorten a time for product testing by releasing deselecting an address latch of a selected block into a deselected state and accessing to a memory cell array after setting all blocks into a selected state in a batch. SOLUTION: An address latch circuit provided in each block of a memory cell array latches all blocks of a memory array 4 into a selected state before deselecting address latches of the selected blocks into a deselected state. Following this, a row decoder 5 accesses the memory arrays 4 in blocks. Thus, all the blocks are latched into a selected state in a batch before an address latching of pre-examined defective blocks can be freed into a deselected state. Therefore, it is eliminated to successively select the blocks one by one except the defective ones, and testing on a batch writing, erasing, and reading of normal blocks can easily be performed.
Patent JP-H10276558-A (JP)
Title: Threshing device
Inventor: YOKOTA YASUE
IPC: A01F12/22
Filed: 1997-03-31
Abstract: PROBLEM TO BE SOLVED: To easily put in/out a threshing cylinder to a threshing chamber and to improve performance for preventing straw from being wound around a threshing cylinder shaft. SOLUTION: In this threshing device in which a threshing cylinder 6 is supported freely rotatably through a threshing cylinder shaft 63 between fore and rear side panels 32 and 33 forming a threshing chamber 19, the threshing cylinder shaft 63 is constituted so as to be elongated/contracted, and foil covers 85 and 86 provided on the fore face and rear face of the threshing cylinder 6 are supported at the elongating/contracting part of the threshing cylinder shaft 63 freely rotatably. On the fore face and rear face of the threshing cylinder 6, recessed parts 82 and 83 are provided for housing the foil covers when taking out the threshing cylinder.  When mounting the threshing cylinder, the foil covers 85 and 86 are abutted on the front and rear side panels 32 and 33 of the threshing chamber 19 and the outer edge parts of foil covers 85 and 86 are extended inside the recessed parts 82 and 83.
Patent JP-S59223739-A (JP)
Title: Melt coating resin and woodboard coated therewith
Inventor: YOSHIKAWA YOSHINOBU
IPC: C08L89/00
Filed: 1983-06-02
Abstract: PURPOSE:To provide a melt coating resin which has a low melt viscosity and can provide a fusible layer when applied in a molten state to woodboard, by mixing a plasticier such as rosin (ester) or petroleum resin with a modified polyolefin, obtd. by copolymerizing a polar monomer, to form a uniform solution. CONSTITUTION:0.001-15wt% polar monome such as methyl acrylate or maleic acid is copolymerized with a polyolefin such as polyethylene or polypropylene to produce a modified polyolefin resin compatible with a plasticizer such as rosin. At least one plasticizer selected from among rosin (ester), petroleum resin, etc. is uniformly mixed with the modified polyolefin resin to obtain the desired melt coating resin. The resin is applied to the surface of a woodboard 1 to form a fusible layer composed of the resin and at the same time to fill grooves 4 such as vessels, cracks, flaws, etc. on the surface of the woodboard 1 with the resin to obtain a concrete form, a decorative sheet, etc.
Patent JP-H11276706-A (JP)
Title: Stock tank for pachinko balls
Inventor: AOKI KENJI
IPC: A63F7/02
Filed: 1998-03-26
Abstract: PROBLEM TO BE SOLVED: To prevent a jam of Pachinko (Japanese pinball game) balls at an opening part so as to enable stable discharge by providing a polygonal opening part of a designated size at the bottom of a stock tank for storing Pachinko balls, and differing angles of inclination between the flat surfaces of the bottom opposite to each other with the opening part interposed between them. SOLUTION: A stock tank 1 for Pachinko balls is a substantially cubic tank, and a quadrangular discharge port 2 of a designated size is provided in a position offset from the center of the bottom of the bottom. The respective flat surfaces forming the bottom are formed with a gradient toward the discharge port 2, and the angles of the flat surfaces 3, 4 of the bottom opposite to each other with the discharge port 2 interposed between them are set in such a manner that one flat surface 4 is larger than the other. Thus, in the case where Pachinko balls flowing in through the respective flat surfaces 3, 4 collide in a position above the discharge port 2, the Pachinko balls laid along the flat surface 4 with a larger inflow force are discharged with priority to prevent a ball jam at the discharge port 2.
Patent JP-S5723919-A (JP)
Title: Electrochromic display composition
Inventor: ISODA SATORU
IPC: G02F1/15
Filed: 1980-07-17
Abstract: PURPOSE:To improve coloring density in a coloring state, and to improve a contrast by shielding a counter electrode, by mixing an electrochromic (EC) substance with an emulsion solution of colloid particles charged with the opposite polarity to that of charge that the EC substance has. CONSTITUTION:An EC dispaly constituent obtained by mixing a derivative as an EC substance with an emulsion solution of colloidal particles with the opposite polarity to the positive charge of the substance, namely, negatively is used in a sol, cream or gel state. Substrates 1 and 1 are provided with a display electrode 2 and a counter electrode 3, respectively, and a composition 5 obtained by mixing the said emulsion obtained by emulsion polymerization, ion-charged collidal particles of adequate combined dyes, and a base electrolyte (LiCl, KCl, etc.) with the said EC substance is sealed to obtain an EC display device. Then, when the electrode 2 is held negative, the EC substance to deposit the constituent 5, and the emulsion particles move to the electrode 3 side to display a dark colored pattern on the electrode 2 while obtaining the background color of the dyes on the electrode 3. The polarities of the electrodes 2 and 3 are inverted to make the dispaly color die away.
Patent JP-H01269508-A (JP)
Title: Antistatic synthetic resin molded product and its manufacture
Inventor: YAMAMOTO NAOKI
IPC: C08J7/046
Filed: 1988-04-21
Abstract: PURPOSE:To provide good and permanent antistatic performance and surface hardness by forming a skin of a polymer of specific composition on a glass or a metal matrix surface and then polymerizing a synthetic resin raw material as a base by means of a matrix. CONSTITUTION:100pts.wt. of a monomer mixture consisting of 20wt.% or more of a monomer (a) having quaternary ammonium salt represented by the formula, 79.99wt.% or less of a monomer (b) having a polymerizable unsaturated double bond, 0.01-10wt.% of a monomer (c) having two or more polymerizable unsaturated double bond is polymerized. Then, a film of a copolymer consisting of 0-190pts.wt. of a monomer (d) having one polymerizable unsaturated double bond and 0-10pts.wt. of a monomer (e) having two or more polymerizable unsaturated double bond are added and polymerized to form a film of copolymer. In the formula, R1 represents H or methyl, R2-R4 represent H or alkyl which can contain H or a substitute having 1-9 carbon numbers, (m) represents 1-10 integer and (x) represents anion of quaternizing agent.
Patent JP-S59222759-A (JP)
Title: Follow-up head for sensor
Inventor: IWASAKI MASAYOSHI
IPC: G01N29/04
Filed: 1983-06-01
Abstract: PURPOSE:To enable a sensor to follow the transverse section of a square lumber satisfactorily on a specified condition while preventing the positional deviation thereof with the square lumber as much as possible regardless of irregularity in the shape of the lumber by making a following head free to rotate as a whole. CONSTITUTION:A following device is made up of a support unit 19 comprising a guide 21, a slide body 22 and a lift 23 and a following head 20 for sensor. The following head 20 makes a sensor follow a square lumber 18 using the surface of the top 2 of the lumber 18 being carried as copying surface 24 and has a following head body 25, a pair of right and left mobile bodies 26, internal and external rotors 27 and 28 examplified by a roller, a compression spring 29 and the like. The head body 25 comprises saddle-shaped body 31 provided across the inner corner and a bracket 32 and is mounted on a piston rod 33 through connector 34. The connector 34 allows the rotation of the following head 20 about the axis parallel to the (x), (y) and (z) axes thereof within a specified allowable range. An ultrasonic sensor is provided at least one of the mobile bodies 26.
Patent JP-H02274633-A (JP)
Title: Operation lever device for tractor
Inventor: YANO SHIGENORI
IPC: B60K23/00
Filed: 1989-04-17
Abstract: PURPOSE:To reduce number of parts through performing a double service and facilitate assembling by pivotally supporting operation levers for a front wheel propulsion shaft device and a belly part PTO shaft device respectively on a common supporting shaft provided on the standing side of a tractor body. CONSTITUTION:An operation lever 59 for a belly part PTO shaft device is rotatably insertedly supported around the axis of a supporting shaft 61 which is set in the transverse direction on the base part 60 formed on a standing side 7A, and L-shaped arm 62 fixedly secured on the shaft end of the supporting shaft 61 is engaged with the circumferential groove of a shifter clutch 36. A boss cylinder 66 fixedly secured at the base part of the lever 59 is fitted on the supporting shaft 61 with a key or a pin, an O-ring is prevented to be drawn out with the boss part, and the lever 59 is extended into the proximity of a driver's seat. Further, an operation lever 68 for a front wheel propulsion shaft device is pivotally supported commonly on the supporting shaft 61 at the boss cylinder 69 of the base part, and upward extended from the boss cylinder 69 into the proximity of the driver's seat. Further, an arm 70 is extended downward from the boss cylinder 69, engaged with the arm of a supporting shaft 71, and also an arm 73 is engaged with the circumferential groove of a shift gear.
Patent JP-S61255913-A (JP)
Title: Heat-resistant copolymer
Inventor: KONDO MASANORI
IPC: C08F220/00
Filed: 1985-05-09
Abstract: PURPOSE:A copolymer having excellent heat resistance and excellent mechanical strength, obtained by copolymerizing a monomer selected from an aromatic vinyl monomer, etc., with an unsaturated dicarboxylic acid monomer and (meth) acrylic acid at a specified weight ratio. CONSTITUTION:The purpose heat-resistant copolymer is obtained by copolym erizing at least one monomer (A) selected from among an aromatic vinyl mono mer (e.g., styrene), an unsaturated carboxylic acid ester monomer (e.g., methyl acrylate) and an unsaturated nitrile monomer (e.g., acrylonitrile) with an unsatu rated dicarboxylic acid anhydride (e.g., maleic anhydride) and/or a maleimide monomer (B), e.g., N-methylmaleimide and a (meth)acrylic acid monomer (C) so that the amounts of components A, B and C used may satisfy the relationships of formulas I, II and III. This copolymer can be suitably used as, e.g., a material for automobile parts.
Patent JP-S5324743-A (JP)
Title: Bus selector for electronic computer
Inventor: FUJIOKA YOSHIKI
IPC: G06F15/16
Filed: 1976-08-20
Abstract: PURPOSE: To prevent the system down, by concentrating the control into a normal unit, thru the execution seperately for the control such as the start of the input and output units and the interrupt process and the data processing in normal running, and thru the bus changeover with fault taken place. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H06285935-A (JP)
Title: Method and apparatus for setting retreat quantity of piston of mold clamping cylinder
Inventor: OBAYASHI TADANORI
IPC: B29C45/64
Filed: 1993-03-31
Abstract: PURPOSE:To allow a movable mold to surely retreat to a desired retreat position from a mold clamping position by stopping the piston of a mold clamping cylinder at a prescribed advance position and supplying a prescribed vol. of hydraulic operating fluid to the oil chamber on the retreat side of the mold clamping cylinder. CONSTITUTION:In the mold opening position state of a piston 18, a movable mold is set to a mold opening position in the state integrated with a movable plate. Oil pressure is supplied to the oil chamber 10a on the mold clamping side of a mold clamping cylinder 10 to perform mold clamping and a prescribed amt. of a foamable molten resin is injected into a mold cavity C. Continuously, mold clamping is performed and the pipeline of the oil chamber 10b on the mold opening side of the mold clamping cylinder 10 is blocked and oil pressure is supplied to a passage 26a from an oil pressure source 27. By this constitution, the hydraulic operating fluid in an oil chamber 22a is forcibly pushed out into the oil chamber 10b on the mold opening side of the mold clamping cylinder 10 and the movable mold retreats by prescribed quantity to increase the volume of the cavity to perform foaming.
Patent JP-H06284847-A (JP)
Title: Apparatus for preventing birds from coming flying
Inventor: YAMAMOTO SOICHI
IPC: A01M29/10
Filed: 1993-04-01
Abstract: PURPOSE:To provide an apparatus for retaining effect on preventing birds from coming flying. CONSTITUTION:This apparatus for preventing birds from coming flying comprises an electric bulb 3, a bowl-shaped rotating and reflecting plate 2 for rotating the circumference of the electric bulb 3 and an upper cover 1 for enclosing the circumference of the rotating and reflecting plate 2 and the electric bulb 3. The rotating and reflecting plate 2 is flexed in the central part of a disk-shaped rotating plate 6 and a rotator 10 fixed to output shaft 9 of a motor 8 is slid to and brought into contact with a no-slip band formed on the peripheral circumference of the rotating plate 6 and the central part of the rotating plate 6 is so as to be only allowed to freely rotatably mounted onto the upper part of a support 4 on which the electric bulb 3 is installed and the support 4 is fixed to a lower side cover 11 detachably mounted in the lower part of the upper cover 1, and a body 12 consisting of the electric bulb 3, the rotating and reflecting plate 2, etc., is connected to a operating part 13 provided in a remote place so as to enable remote control.
Patent JP-H075401-A (JP)
Title: Device for inspecting lens and method thereof
Inventor: YANO NOBUYUKI
IPC: G02C13/00
Filed: 1993-03-31
Abstract: PURPOSE:To enable an observer to easily recognize a hidden mark and to easily detect the hidden mark and a flaw. CONSTITUTION:The lens inspecting device which detects the hidden mark and flaw of a lens 6 to be inspected is equipped with a support means which supports the lens at a specific position of the inspecting device, a 1st illumination light source 1, a pinhole plate 4 where many pinholes lighted by the 1st illumination light source 1 are arrayed, and a pinhole image formation optical system which forms a pinhole image with illumination luminous flux passed through a pinhole plate 4 and transmitted through the lens 6 to be inspected; and the pupil of the inspector is positioned at the position where the pinhole image is formed by the pinhole image formation optical system to detect the hidden mark and flaw of the lens 6.
Patent JP-S5527524-A (JP)
Title: Piston ring
Inventor: SAITOU MUTSUO
IPC: F02F5/00
Filed: 1978-08-16
Abstract: PURPOSE: To improve sealability between a piston and a cylinder by providing a specifically  designed stepped parts at the cut section of the piston ring.  
     CONSTITUTION: At the cut section of the piston ring 1, having coating member 2 on its outer  surface, clearance A for high pressure side and clearance B for low pressure side are provided  respectively. Also on one end thereof, stepped parts L and N are formed in the manner that the  same two stepped parts which are inversely formed on the other end, and those L's and N's  engage with each other at the cut section. Stepped parts L's engage longitudinally and the stepped  parts N's engage radially respectively. By this structure of steps formed at the cut section of the  both ends of the piston ring 1 being inserted into a groove provided at the outer circumference of  the piston, gas pressure leak to various directions is intercepted as follows: (a) gas leak toward  direction J from the higher gressure side is checked by the lower surface of the outer circumferential groove of the piston, (b) gas leak toward direction K is checked by the other end side of  the piston ring engaging with the step L which overlaps radially, (c) gas leak toward direction M  is checked by the other end side of the piston ring engaging with the step N which overlaps axially, (d) gas leak toward direction E is checked by the inner surface of the cylinder. By the above  structure, all the passages of gas leaks thru the piston ring from the higher pressure side toward  the lower pressure side are tightly closed and the desired objective is obtained. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S60242516-A (JP)
Title: Magnetic recording medium
Inventor: HACHITSUKA TSUYOSHI
IPC: C09D175/06
Filed: 1984-05-16
Abstract: PURPOSE:To obtain a magnetic recording medium having excellent heat resistance, durability, etc. by using a binder prepd. by bringing org. diisocyanate, long chain diol having the mol.wt. in a specific range and ester group-contg. diol having the mol.wt. below a specific value into reaction on a non-magnetic base. CONSTITUTION:The magnetic layer contg. the thermoplastic polyurethane resin formed by bringing the polyester diol which has <=500mol.wt. and expressed by formulas I, II, III (R1, R2, R5, R6, R7 are bivalent hydrocarbon groups, R1 is a trivalent hydrocarbon group, R4 is a monovalent hydrocarbon group), the long chain polyester diol, polyether diol, polycarbonate diol, etc. having the mol.wt. within a 500-8,000 range and org. diisocyanate into reaction as a binder for ferromagnetic powder is formed on the non-magnetic base. Solubility in a general- purpose org. solvent is improved by using the diol expressed by formulas I - IIIand good coatability and dryability are obtained even if the concn. of the urethane base is increased. The magnetic recording medium having excellent heat resistance, wear resistance, durability, etc. is obtd.
Patent JP-H04216-A (JP)
Title: Power supply
Inventor: MIZOGUCHI SHIGERU
IPC: H02J1/00
Filed: 1990-04-17
Abstract: PURPOSE:To feed a constant voltage efficiently through a simple and inexpensive constitution by inserting a voltage drop resistor in series in a feeder path between an unstabilized power supply and a constant voltage circuit and controlling the resistance of the voltage drop resistor according to predetermined control conditions. CONSTITUTION:When the output voltage from an unstabilized power supply 1 is higher than a predetermined reference voltage determined by a Zener diode 42, a resistor R2 is inserted into a feeder path whereas when the output voltage from the unstabilized power supply 1 is lower than the predetermined reference voltage, the resistor R2 is removed from the feeder path. Regulation is carried out such that the input voltage to a constant voltage circuit 5 will be relatively low for a large output from the unstabilized power supply 1 whereas the input voltage to the constant voltage circuit 5 will be relatively low for a small output from the unstabilized power supply 1.